NICK COX ARCHITECTS

Kedleston Hall is managed by the National Trust and is one of the earliest and greatest works of Robert Adam. Nick Cox has worked for the Trust at Kedleston Hall since 1994, carrying out condition surveys and complex repairs (including reroofing). 

Elegant grand hall with marble columns, intricate ceiling details, classical statues, and patterned marble flooring; architecture by Nick Cox Architects.

The Marble Hall

The ornate Robert Adam 1760s stone floor is one of the most significant in the care of the National Trust. Following signs of deterioration, Nick Cox Architects were appointed to manage a long-running investigation, which included dynamic load testing and surveys to determine the cause of movement in the floor and access to determine the cause of water ingress.  

Interior ceiling with ornate decoration and three skylights displaying a blue sky, architecture by Nick Cox Architects.

As much as necessary, but as little as possible

Following investigations, the visitor route was moved from the centre of the existing floor, preventing the need for a large and expensive repair project.  At roof level, the three oval lanterns were repaired with bespoke bronze glazing bar extensions and new laminated UV filters added, solving the long-term leaks. 

Interior staircase with wooden steps, black metal railing, green walls, and decorative ceiling moulding, architecture by Nick Cox Architects

Maintaining safe access

Three of the grand historic cantilever staircases had serious cracks. Archive research, analysis of operational use and their structural performance were considered prior to recommending targeted masonry and resin interventions to support them where necessary. The result is minimally visible, maintaining the historic fabric of the staircase while ensuring they are safe to use for staff and visitors. 

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